-
- 全部產(chǎn)品分類
- 標(biāo)準(zhǔn)物質(zhì)
中國(guó)標(biāo)準(zhǔn)物質(zhì) 美國(guó)NIST 歐洲IRMM/ERM 歐洲BCR 英國(guó)MBH 德國(guó)SUS 美國(guó)BS LGC標(biāo)準(zhǔn)物質(zhì) 美國(guó)USGS標(biāo)準(zhǔn)物質(zhì) 國(guó)立環(huán)境標(biāo)準(zhǔn)物質(zhì) IAEA標(biāo)準(zhǔn)物質(zhì) 加拿大礦產(chǎn)科學(xué)室(CCRMP) 日本JSAC標(biāo)準(zhǔn)物質(zhì) 日本GSJ地質(zhì)標(biāo)準(zhǔn)物質(zhì) 美國(guó)ERA標(biāo)準(zhǔn)物質(zhì)
- 藥典及其雜質(zhì)對(duì)照品
- 標(biāo)準(zhǔn)品
- 培養(yǎng)基
- 化學(xué)試劑
- 菌種及細(xì)胞
- 血清
- 試劑盒
- 氣相色譜
- 液相色譜
- 樣品前處理
- 實(shí)驗(yàn)室耗材
- 色譜進(jìn)樣瓶
- 實(shí)驗(yàn)室安全防護(hù)產(chǎn)品
- 電化學(xué)
- 實(shí)驗(yàn)室儀器設(shè)備
-
- 您現(xiàn)在的位置：首頁(yè) >> 產(chǎn)品中心 >> 標(biāo)準(zhǔn)物質(zhì) >> IAEA標(biāo)準(zhǔn)物質(zhì)IAEA標(biāo)準(zhǔn)物質(zhì)
-
-
中文名稱：青草
英文名稱：Grass訂貨以英文名稱為準(zhǔn)。
產(chǎn)品編號(hào)：IAEA-372CAS：/
品牌：標(biāo)準(zhǔn)物質(zhì)產(chǎn)地：進(jìn)口
標(biāo)準(zhǔn)值：見(jiàn)證書(shū)分子式：/
規(guī)格 市場(chǎng)價(jià)(元) 折后價(jià)(元) 供貨周期 數(shù)量 加入購(gòu)物車 100g 0.00 0.00 3-4周 加入購(gòu)物車
-
產(chǎn)品詳細(xì)介紹
IAEA-372青草Grass
The material was obtained from the “Vladimirovka” collective farm, Polesskoe, Kiev, Ukraine, in summer 1990. The material was air dried and milled to less than 0.3 mm by the Brjansk Centre for Agricultural Radiology and Chemistry. Then 75 kg of the bulk material were recombined and homogenized at an IAEA collaborating centre (the Hungarian National Institute for Food Inspection) by mixing the powder in a 300 L drum for 72 hours, and then dispensed into plastic bottles, sealed with polyethylene caps in 100 g units, and labelled with the code IAEA-372. Subsequently, the samples were irradiated to a dose of 25.5 kGy minimum using a Co-60 source according to EN ISO 13485:2003 to ensure long-term stability of the material by inhibiting microbial action.
Reference date for decay correction: 2006-06-01
Analyte Value Unit Uncertainty 40K 1060 Bq/kg 56 137Cs 11320 Bq/kg 360 The values listed above were established on the basis of statistically valid results submitted by laboratories which had participated in one or more international interlaboratory comparisons organized by the Chemistry Unit, IAEA Laboratories, Seibersdorf. The details concerning the criteria for qualification as a recommended or information value may be found in the respective report.
References:
SHAKHASHIRO, A., SANSONE, U., ARNOLD, D., DRYAK, P., LA ROSA, J.J., JEROME, S.M., MAKAREWICZ, M., MENTCHEVA, J., SATO, K., TARJAN, S., The new IAEA-372 grass-certified reference material for 40K and 137Cs, Appl. Rad. Isotop. 66 (2008) 1718-1721.
